Whenever a bridge's necessary approaches and connecting roads are to be constructed, as herein provided, the Secretary of Highways shall cause a plan thereof to be made, showing the location and width thereof and the area of private property to be taken to effect the improvement and shall submit the same to the Governor for his approval, after which the Secretary of Highways shall attach thereto his acknowledgment. Such plan and acknowledgment shall be recorded in the office of the recorder of deeds of the proper county or counties in a separate book kept for such purpose which shall be furnished to the recorder of deeds by the county commissioners. All costs of recording shall be paid by the Department of Highways of the Commonwealth. The approval of such plan or plans by the Governor shall be considered to be the condemnation of an easement for highway or bridge purposes of all property within the lines marked as required for right of way and the condemnation of an easement of support or protection from all property within the lines marked as required for slopes.